i am a person with infective endocarditis. lately i have a stuffy nose with white phlegm.it is already 3 months since i got stuffy nose and it kills me because even though my doctor allow me to exercise. when i exercise, i feel an air in my ear. is the reason of air in my ear is because of my stuffy nose or heart disease. and what are the solution for my problem. any advice will do. thank you in advance for answering my question :)